Senior Property Tax Exemption: For those who qualify, 50 percent of the first $200,000 of actual value of the property is exempted. The State will pay the exempted property tax. The exemption must be applied for only once, and it remains in effect for subsequent years as long as the property ownership and occupancy do not change.
Senior Primary Residence Classification (aka Portable Senior Classification): For those who qualify, 50 percent of the first $200,000 of actual value, or the amount that causes the assessed value to be $1,000 or greater, of the applicant's primary residence is not taxable. The State will pay the exempted property tax.
Qualifications

- Senior Property Tax Exemption-application deadline is July 15th.
- Must be at least 65 years old on January 1 of the year in which applying.
- Must be the owner of record and must have been the owner of record for at least ten consecutive years prior to January 1 of the year in which applying.
- Must occupy the property as their primary residence and must have done so for at least ten consecutive years prior to January 1 of the year in which applying.
- Or are the surviving spouse of a previously qualified applicant.
- Senior Primary Residence Classification (aka Portable Senior Classification)-application deadline is March 15th.
- This classification is currently approved for tax years 2025 and 2026 only.
- As of January 1, 2020 or later, must have been receiving the Senior Property Tax Exemption on a property in Colorado and have since lost that exemption due to establishing a new primary residence.
- Must be the owner of record of the new primary residence as of January 1 of the year in which applying.
- Must occupy the property as their primary residence.
- Or are the surviving spouse of a previously qualified senior that would now meet the classification requirements.